Intra- and Inter-Rater Reliability of Processing Ultrasound Tissue Characterization Scans in Midportion Achilles Tendinopathy

Figure 3

Short-axis UTC image of the midportion of the Achilles tendon. The yellow circle marks the anatomical borders of the Achilles tendon. Echo-type I is colored green, echo-type II is colored blue, echo-type III is colored red, and echo-type IV is colored black. Echo-types I + II represent aligned fibrillar structure whereas echo-types III + IV can be seen as disorganized Achilles tendon structure.